CVE-2025-64641— Mattermost Jira plugin crafted action leaks Jira issue details
Quick assessment
Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 11.1.0及之前的11.1.x版本、11.0.5及之前的11.0.x版本、10.12.3及之前的10.12.x版本和10.11.7及之前的10.11.x版本存在安全漏洞，该漏洞源于未验证由Jira插件创建的操作，可能导致恶意用户渗漏Jira票据。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2025-64641
Vulnerability Information
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Vulnerability Title
Mattermost Jira plugin crafted action leaks Jira issue details
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 11.1.0及之前的11.1.x版本、11.0.5及之前的11.0.x版本、10.12.3及之前的10.12.x版本和10.11.7及之前的10.11.x版本存在安全漏洞，该漏洞源于未验证由Jira插件创建的操作，可能导致恶意用户渗漏Jira票据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mattermost | Mattermost | 11.1.0 ~ 11.1.0 | - |
|
II. Public POCs for CVE-2025-64641
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: Mattermost
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CVE-2026-75587
Plaintext pre-auth secret exposure via Desktop App diagnosti -
CVE-2026-9693
Mattermost thread memberships persist after team removal, ex -
CVE-2026-9859
Mattermost Boards plugin didn’t enforce role-based authoriza -
CVE-2026-9816
Insufficient server-side validation of board member role fie -
CVE-2026-10080
Boards plugin panics on WebSocket command with non-string fi
Same vendor: Mattermost
-
CVE-2026-75587
Plaintext pre-auth secret exposure via Desktop App diagnosti -
CVE-2026-9693
Mattermost thread memberships persist after team removal, ex -
CVE-2026-9859
Mattermost Boards plugin didn’t enforce role-based authoriza -
CVE-2026-9816
Insufficient server-side validation of board member role fie -
CVE-2026-10080
Boards plugin panics on WebSocket command with non-string fi
Same weakness: CWE-863
V. Comments for CVE-2025-64641
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